Blank-guide for automatic thread-rollers.



A. H. GAESS. BLANK GUIDE F'oR AUTOMATIC THREAD RoLLERs.

APPLICATION FILED SEFT- 26, 1914.

Patented July 13, 1915.

2 SHEETS-SHEETI Messes APPLICATION FILED SEPT26,1914.

Patented July 13, 1915.

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ALBERT H. GAESS, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE E. J'. MANVILLE MACHINE COMPANY, OF WATERBURY, CONNECTICUT, A CORPORATION 0F CON- NECTICUT.

BLANK-GUIDE FOR AUTOMATIC THREAD-ROLLERS.

Specification of Letters Patent.

Patented July 13, 1915.

Application filed September 26, 1914. Serial No. 853,634.

To all whom t may concern.'

Be it known that I, ALBERT H. Gnnss, a citizen of the United States, residing at `Waterbury, in the county of New Haven and State of Connecticut, have invented a new and useful Tmprovement in Blank- Guides for Automatic Thread-Rollers, of which the following is a specification.

This invention relates to the construction of the mechanism, which is provided for holding and guiding blanks while they are being fed to and started between the dies of an automatic thread rol-ling machine. Tt is, of course, necessary to vary the opening between the dies of such a machine according` to the diameters of the blanks to be threaded. This is usually accomplished by moving the stationary die toward or from the plane of the threading face of the movable die. However, if the movable die becomes worn and it is desirableto recut it and make the die thinner that die also must of necessity be adjusted. The blanks in these machines are usually allowed to feed by gravity down inclined tracks or chutes into position to be started by a pusher between the stationary die and the movable die, which are to roll the threads upon the bodies of the blanks. These tracks support the blanks by their heads with the bodies `hanging down and necessarily must be adjusted for changing the width of the opening between them according to the diameters of the blanks which are to feed down, also to make them properly aline the blanks with the dies.

The object of this invention is to provide a very simple attachment for a machine of this character which can be applied to the lower end of the feed track so as to properly hold and guide the blanks from the lower end of the track until they are accurately caught between the dies, this attachment being so constructed that it is a very easy matter to correctly adjust the guiding path for blanks of various diameters according to the positions of the working faces of the dies.

Figure 1 of the accompanying drawings shows a plan of a track for feeding blanks, with a guiding attachment which embodies this invention secured thereto. Fig. 2 shows a side elevation of the same. Fig. 3 shows an end elevation of this attachment.

The blanks 1 slide down the track with their heads resting on the upper edges of the track plates 2 and 3 and their bodies hanging down between the plates. The body 4 of the guiding attachment is fastened to the front face of the front track plate 2 by means of screws 5 which extend through a slot 6 in the body into the track plate. The back of the body preferably extends a little way into a groove 7 in the front wall of the front track plate so that when the screws 5 are loosened the body and all the parts it carries may be moved lengthwise along the face of the track.

On the under side of the body is a block 8. This block is fastened to the body by means of a screw `S) which extends through a slot l0 in the body and into the block. The upper face of this block extends into a shallow groove 11 in the under side of the body so that when the screw 9 is loosened the block may be moved either in or out longitudinally with relation to the body. lastened by screws 12 to the bottom of this block is a shelf plate 13. @n the end of the body is a plate 14. This plate is secured by a screw 15 which passes through a slot 16 in the plate into the end of the body. When the screw 15 is loosened the plate 14e may be moved a limited distance transversely along the end of the body. Secured by screw 17 to the lower edge of the plate 14 isa shelf plate 18 which cooperates with the shelf plate 13 to form the `support and guiding path for the blanks.

The rear end of the shelf plate 1S curves around and has an extension 19 that is designed to coincide with the lower end of the back track plate 3.

The dies are, of course, adjusted with relation to each other so that they will roll the desired threads upon the particular size of blanks to vbe threaded. This is usually accomplished by adjusting the stationary die 20 toward the movable die 21 until the space between the dies is such that they will roll the threads accurately upon the blanks. The track plates are adjusted toward or from each other according to the diameters of the Shanks of the blanks to be threaded. The relative positions, transversely, of the front track plate and the inner shelf plate are never changed, that is, the'rear end of that shelf plate always coincides with and forms a continuation of the inner wall of the front track plate, but, of course, that shelf plate is moved in or out to keep its guiding edge in proper relation to the face of the stationary die. The outer shelf plate is adjusted transversely of the body of the attachment so that its rear curved end will coincide with and form a continuation of the inner wall of the back track plate. For eXample,-under ordinary working conditions if it should be desired to change the machine from ig work, the adjustment shown in the drawings, to roll i work, the adjust-ment would be eifected by moving the block 8 and shelf plate 13, toward the supporting plate 14 and shelf plate 1S, one eighth of an inch, and moving the stationary die 20 toward the movable die 21 the same amount. Then the two track plates are moved toward each other, closing up the space between them the same amount, after which the supporting plate 1st with the shelf plate 18, is moved forward, that is, trans versely of the body, until the rear end of the shelf plate coincides with the back track plate. lW hen it is necessary to recut the movable die and thus make it thinner, the whole attachment, after loosening the fastening screws 5, is movedforward on the front track plate, and then the parts are adjusted as above described.

ln order to hold the heads of t-he blanks down on the shelf plates 13 and 18 a pressure plate 22 may be provided. The stem 23 of this plate extends through the body and has its upper threaded end provided with nuts 24. A spring 25 fastened to the body by a screw 26 and bearing on the end of the stem 23 normally holds the pressure plate down with the nuts in engagement with the top of the body. By adjusting the nuts on the stem of the pressure plate the height of that plate may be changed according to the sizes and shapes of the heads of the diiferent blanks.

rThe invention claimed is 1. A blank guide consisting of a body, a block secured to and adjustable longitudinally of the body, a shelf plate carried by i said block, a supporting plate secured to and adjustable transversely of the body, and a shelf plate carried by said supporting plate.

2. A blank guide consisting of a body, a block movable longitudinally with relation to said body, a screw passing through said body and adjustably securing said block, a shelf plate fastened to said block, a supporting plate adjustable transversely with relation to the end of the body, a screw passing through said supporting plate and securing it to the body, and a shelf plate secured to said supporting plate.

3. A blank guide consisting of a body, a block secured to said body and adjustable longitudinally with relation thereto, a shelf plate secured to said block, a supporting plate secured to the end of the bot y and adjustable transversely with relation thereto, a shelf plate secured to said supporting plate, a pressure plate having a shank eX- tending through said body, means for limiting the downward movement of said pressure plate, and a spring secured to said body and normally thrusting said pressure plate downward.

ALBERT H. GAESS.

Witnesses HOWARD C. POST, Narni.. R. BnoNsoN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, i). C. 

